@inproceedings{su2021pdc,
  title={Pixel Difference Networks for Efficient Edge Detection},
  author={Su, Zhuo and Liu, Wenzhe and Yu, Zitong and Hu, Dewen and Liao, Qing and Tian, Qi and Pietikainen, Matti and Liu, Li},
  booktitle={Proceedings of the IEEE/CVF International Conference on Computer Vision},
  pages={5117--5127},
  year={2021}
}

@inproceedings{su2019bird,
  title={BIRD: Learning Binary and Illumination Robust Descriptor for Face Recognition.},
  author={Su, Zhuo and Pietik{\"a}inen, Matti and Liu, Li},
  booktitle={British Machine Vision Conference},
  pages={102},
  year={2019}
}
